卡维地洛对原发性高血压心率变异性的影响

目的　观察卡维地洛对原发性高血压 (EH)患者心率变异性的影响。方法　 4 2例高血压患者每日服卡维地洛 2 0mg,观察 8周。记录用药前后血压、心率及 2 4小时动态心电图 ,分析心率变异 (HRV)时域和频域指标 ,并与 4 2例健康对照组比较。结果　与对照组相比 ,EH患者相邻正常R R间期标准差(SDNN)、正常相邻R R间期差值的方差 (RMSSD)及高频功率 (HF)均明显下降 ,低频功率 /高频功率值 (LF/HF)增加。用卡维地洛后血压从 (15 5 .5± 17.1) / (10 0 .9± 5 .6 )mmHg下降至 (14 7.8± 14 .4 ) / (88.7± 3.6 )mmHg (P <0 .0 1) ,心率从 (79.5± 10 .1)次 /min下降至 (6 6 .1± 7.5 )次 /min(P <0 .0 1) ,同时SDNN、RMSSD、HF增加 ,LF/HF值降低。结论　卡维地洛可提高原发性高血压患者的心率变异性 ,改善自主神经功能。     

参芎葡萄糖注射液联合缬沙坦胶囊治疗肾性高血压的效果研究

目的：探讨参芎葡萄糖注射液联合缬沙坦胶囊治疗肾性高血压的临床效果。方法回顾性分析2013年4月～2014年3月我院收治的肾性高血压患者136例,按照就诊的先后顺序分为观察组及对照组,每组68例,对照组单独采用缬沙坦胶囊治疗,观察组采用参芎葡萄糖注射液联合缬沙坦胶囊治疗,比较两组临床总有效率、治疗前后收缩压及舒张压情况、治疗前后肾功能及不良反应发生率。结果（1）观察组临床总有效率与对照组比较明显较高（P＜0.05）。（2）两组治疗后的收缩压、舒张压、BUN及Cr水平与治疗前比较均明显降低,Scr水平明显升高,观察组治疗后各项指标改善的程度与对照组比较更明显（P＜0.05）。（3）两组不良反应发生率差异无统计学意义（P＞0.05）。结论参芎葡萄糖注射液联合缬沙坦治疗肾性高血压疗效确切,安全性高,可以作为一种有效的治疗方式在临床推广应用。     

Transient nephrogenic diabetes insipidus caused by fetal exposure to haloperidol

Haloperidol is commonly used in the treatment of psychiatric disorders. Data from animal experiments indicate haloperidol is not teratogenic, but is embryotoxic in high doses. For the first time, we report a neonate with transient nephrogenic diabetes insipidus (DI) caused by fetal exposure to haloperidol. The magnitude of risk associated with the use of haloperidol during pregnancy appears to be small, but nephrogenic DI secondary to haloperidol is a serious condition with the risk of hypernatremic dehydration. Haloperidol can have adverse effects on the fetus and newborn infant, that’s why one should prevent the use of haloperidol during pregnancy and lactation.     

核因子-kB、肿瘤坏死因子-a在糖尿病大鼠膀胱的表达及相互关系的研究

【目的】观察糖尿病大鼠膀胱组织的病理改变，检测核因子-kBp65、肿瘤坏死因子-a表达的变化，并探讨两者关系。【方法】采用右下腹腔内一次性注射链脲佐菌素60mg／kg诱导Wistar大鼠糖尿病模型26只，分别于成模后1、3、6个月观察膀胱组织的病理改变，检测核因子-kBp65、肿瘤坏死因子-a表达变化。【结果】随糖尿病病程延长，膀胱组织发生病理改变，核因子-kBp65、肿瘤坏死因子-a表达显著增强，两者呈正相关。【结论】核因子-kBp65、肿瘤坏死因子-a与糖尿病膀胱的病理、功能改变相关。     

Adrenal gland-dependent augmentation of plasminogen activator inhibitor-1 expression in streptozotocin-induced diabetic mice

BACKGROUND: Diabetes is associated with an excess risk of cardiac events, and one risk factor for infarction is an elevated level of plasminogen activator inhibitor-1 (PAI-1). OBJECTIVES AND METHODS: To evaluate whether the glucocorticoid hormones are involved in the diabetes-induced PAI-1 production, we examined expression profiles of PAI-1 mRNA in adrenalectomized (ADX) mice with streptozotocin (STZ)-induced diabetes. RESULTS: The diabetes-induced augmentation of plasma PAI-1 levels and PAI-1 mRNA expression in the heart and lungs was completely normalized in diabetic ADX mice. The glucocorticoid receptor antagonist RU486 significantly, but only partly suppressed PAI-1 induction in STZ-induced diabetic mice, suggesting that factors other than glucocorticoids are also involved in PAI-1 induction provoked by diabetes. CONCLUSION: Our results suggested that the adrenal gland plays a critical role in the progression of thrombosis in diabetic patients by inducing expression of the PAI-1 gene.     

结缔组织生长因子与自发性高血压大鼠心肌纤维化的相关性研究

目的:探讨结缔组织生长因子(C TG F)在高血压心肌纤维化发生发展中的作用。方法:本实验以14周龄雄性W K Y大鼠和SH R大鼠为研究对象,测量14周、28周大鼠尾动脉压,并对大鼠左室心肌C TG F、TG F-β1的表达用免疫组化法进行半定量分析;R T-PC R法检测C TG F、TG F-β1m R N A表达水平;M A SSO N染色法观察胶原形态,测量胶原容积分数(C V F)和血管周围胶原面积(PV C A)。结果:(1)SH R大鼠组C V F、PV C A明显高于W K Y大鼠组(P<0.01);(2)C TG F、TG F-β1及其m R N A在SH R组左室心肌的表达较W K Y组明显增强(P<0.05)。(3)相关分析表明,C TG F与TG F-β1(r=0.562,P<0.05)、C V F(r=0.715,P<0.01)、PV C A(r=0.786,P<0.01)呈正相关。结论:C TG F参与了SH R大鼠高血压心肌纤维化的病理过程。